T-Motor BPP-4D Pro F3P Combo (AM40 Motor + AM16A ESC + T8542 Prop)

The T-Motor BPP-4D Pro is a matched power set for F3P indoor aerobatic planes of about 150-320 g: an AM40 1850KV outrunner, an AM16A forward/reverse ESC and a T8542 4D propeller. It is made for 3D and 4D flying, where the motor reverses direction in flight, and is not a multirotor motor.

Key features

• 3D/4D one-key switch: the AM16A changes between 3D mode and 4D forward/reverse mode with one button, with no parameter programming needed.

• 4D propeller: the T8542 is made to produce thrust in both rotation directions, which 4D manoeuvres rely on.

• Light motor: the AM40 weighs 22.5 g with leads, measures 28 x 18.7 mm and uses a 12N14P layout on a 3 mm shaft.

• Servo power on board: the ESC's 5.5 V / 3 A switching BEC runs the receiver and servos from the flight pack.

• Compact ESC: a 24 x 12 mm board running BLHeli_S firmware.

Specifications

• Motor: AM40 1850KV, 12N14P

• Motor dimensions: 28 x 18.7 mm

• Motor weight: 22.5 g including leads

• Shaft: 3 mm

• Internal resistance: 78.2 mΩ

• Idle current: 0.95 A at 10 V

• Peak current: 22 A (180 s)

• Max power: 180 W (180 s)

• Motor leads: 40 mm

• Battery: 2-3S LiPo (motor and ESC)

• ESC: AM16A, BLHeli_S, 3D/4D switchable

• ESC BEC: 5.5 V / 3 A switching

• ESC size: 24 x 12 mm

• Propeller: T8542 4D

• Aircraft weight: 150-320 g F3P planes

• In the box: AM40 motor, AM16A ESC, T8542 propeller, parts pack

Run the set on 2S or 3S LiPo. In T-Motor's bench test at around 7.5 V the AM40 1850KV pulled 603 g on an 8044 prop and 700 g on a 9048, a wide thrust margin over a 150-320 g airframe. Keep the 4D prop fitted when flying in 4D mode, as a standard one-direction prop gives little thrust when the motor runs in reverse.